carbon and nitrogen nutrition
crop nitrogen nutrition
high-nitrogen nutrition
nitrogen index dynamics
Nitrogen nutrition
水稻叶片
氮源
氮素
水稻
N肥
氮营养
N素营养
氮素营养性状
氮素营养
氮
铁营养
nitrogen nutrition characteristics
nitrogen nutrition diagnosis
nitrogen nutrition efficiency
nitrogen nutrition level
Soil nitrogen nutrition
integral index index of connectivity
combined application of organic nitrogen and nitrogen
nitrogen balance nitrogen equilibium
nitrogen effect to soil nitrogen
nitrogen response rate to fertilizer-nitrogen
Real-time nitrogen management and site-specific nitrogen management